Bread-making machine.



No. 638,990. Patented Nov. 2a, |399. P. F. & A. F. BnYcE.

BREAD MAKING MACHINE. (Appucacion xed un. 21, 1898.

m' Mw pff@ MWZQSW Grauwe.. wAsm NaYoN n c UNTTED STATES PATENT Fries,

PETER F. BRYCE AND ALEXANDER l?. BRYCE, OF CHICAGO, ILLINOIS, ASSIGNORSTO THE BRYCE BAKING COMPANY, OE SAME PLACE.

BREAD-MAKING MACHINE.

SECIFICATION forming part of Letters Patent No. 638,090, dated November28, 1899. Application filed March 21, 1898. Serial No. 674,625. (N0mOdeL) T0 @ZZ whom it may concern:

Be it known that we, PETER F. BRYCE and ALEXANDER F. BRYCE, citizens ofthe United States, residing at Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements in Bread-Making Machines, of which the following is a specification.

Our invention relates to that class of machines in which the dough isfed in in the desired amounts and is rolled or formed into loaves forbaking, andparticularly to that type of machines for the formation ofround or cylindrical loaves of bread.

The object of our invention is to provide a simple, economical, andefficient machine for rolling a quantity of dough into cylindrical formnecessary for forming a loaf of bread; and the' invention consists iuthe features, combinations, and details of construction hereinafterdescribed and claimed.

In the accompanying drawings, Figure lis a vertical longitudinalsectional elevation of a machine constructed in accordance with ourimprovements; Fig. 2, an end elevation of the same, and Fig. 3 a detailview of a loaf of bread as formed bythe machine.

In constructing a machine in accordance with our improvements we make aframe A of the desired size, shape, and strength to hold its movable andother parts in operative position.

In order to roll a sheet or lump of dough into the cylindrical formrequired before baking into bread, two main forming-rolls B and B areprovided, their peripheral surfaces being situated a desired distanceapart, so as not to contact each other and to form a space l), throughwhich the sheet or lump of dough may be inserted. In order to preventthe sheet or lump of dough from falling through, to keep it in contactwith the other rolls, and to roll it over and over again to form thedesired cylindrical shape of a round loaf of bread, an auxiliary roll Cis provided and located opposite the opening formed between the two mainrolls, so that the bread as it enters will be first contacted by it,forced into contact with the upper rolls, and formed into `termediategear D2 is mounted.

the gearing for operating these rolls, in which D is the maindriving-shaft, provided with a pulley D', a spur-gear d engaging with apinion d', which drives the main roll B. By means of an intermediategear D2 power and motion are transmitted to the pinion d2, whichoperates the second main roll B', and by means of a second intermediate`gear D power and motion are transmitted to the pinion d3 on theauxiliary roll. It will thus be seen from an examination of the drawingsthat the rolls all rotate in the same direction, thereby facilitatingthe formation of a piece of dough into a cylindrical shape.

After the loaf of dough has been formed it is necessary to discharge itbetween the rolls. In order to accomplish this result, the auxiliaryroll is mounted upon swinging links E, pivoted at or about the shaft ZJof the first main roll, so that in swinging it is moved concentric withthe center of the main roll. To operate these links, a face-cam G isprovided, which has its groove g engaging with a pin g' on the pitmanG', which is pivotally connectedto the swinging links, so that as themain shaft is rotated the pitman is operated at predetermined times andthe loaf of dough allowed to drop out from between the rolls on to adischarge-chute H, by which it may be carried to any desired point.

To make dierent-sized loaves of bread an for other reasons, such as theregulation of l the particular size of any one loaf of bread, it isdesirable to have one or both of the main rolls adj ustably mounted. Inorder to accomplish this result, we preferably mount the main rolls onbars I and I', which are pivoted together at i at the point where thein- These links form, as it were, a flexible frame, in which the rollsare rotatably mounted, and in order to secure the necessary adjustmentone of the links is provided with a bar I2, which is adjust-ably mountedin a suitable groove z" of the frame, while a set-screw 2 is used forholding it in any desired position. By this arrangement of constructionit will be seen that the main rolls may be located at any desireddistance apart and adjusted, whenever neef essary, without in any wayinterfering with the transmission of power to such rolls.

In order to keep the roll of dough between the forming-roll and to limitits length, one of the main rolls is provided with flanges b2, whichpractically overlap the opening between the rolls and at the endthereof. These anges can be formed integral with the roll, if desired,or may be mounted so as to have an independent rotation therewith ormounted loosely in such manner as not to rotate at all.

In operation the sheet or piece of dough is dropped between theforming-rolls through the opening b, and as it contacts the lower rollis thrown against the main roll B and curved upward. Falling back ot itsown weight it contacts the main roll B and is again driven into contactwith the lower roll or rolled upon itself, the operation continuinguntil the compact mass in the shape of a cylindrical loaf of dough isformed. The auxiliary roll is then operated, so as to liberate the loafof doughand allow it to slide down the discharge-chute and be conveyedto a suitable point for rising and baking.

From an inspection of the drawings and the foregoing description ofconstruction and operation it will be seen that at least three rolls areso arranged as to provide a space between them-that is,these rolls arepractically arranged at points about a central space and run in the samedirection, so as to facilitate the forming of a loaf of bread. We preferfor convenience and for economy in construction and operation to use butthree rolls; but it will be seen that tive or more rolls may be used,placed about the center, and accomplish the same result, with slightchanges in mechanical details.

While we have described our invention with more or less minuteness asregards details of construction and arrangement and as being embodied incertain precise forms, we do not desire to be limited thereto unduly anymore than is pointed out in the claims. On the contrary, we contemplateall proper changes in form, construction, and arrangement, the omissionof immaterial elements, and the substitution of equivalents, ascircumstances may suggest or necessity render expedient.

We claiml. In a machine for forming a cylindrical loat' of dough, thecombination of two main forming-rolls, an auxiliary roll mountedadjacent to the other two rolls so as to form a space in which a pieceof dough may be received, and means for vibrating or moving theauxiliary roll so as to assist in discharging the formed loaf of dough,substantially as described.

2. In a machine for forming a cylindrical loaf of dough, the combinationof two main forming-rolls rotatably mounted so as to provide a spacebetween their peripheral surfaces, an auxiliary roll mounted oppositethe space formed between the main forming-rolls, and means for vibratingor oscillating the auxiliary roll into and out of operative position toform and discharge the loaf of dough, substantially as described.

3. In a machine for forming a cylindrical loaf of dough, the combinationof two main forming-rolls, means for laterally adjusting one of suchrolls, an auxiliary roll mounted opposite the space formed by the mainrolls, and means for vibrating the auxiliary rol-l to assist indischarging the loaf of dough, substantially as described.

4. In a machine for forming a cylindrical loaf of dough, the combinationof two main forming-rolls, a flexible frame upon which suchforming-rolls are adjustably mounted to regulate the size of the loaf ofdough to be formed between the same, an auxiliary roll mounted oppositethe space formed by the two main rolls, and means for vibrating theauxiliary roll so as to assist in discharging the formed loaf of dough,substantially as described.

5. In a machine for forming a cylindrical loaf of dough, the combinationof two main forming-rolls, a exible frame upon which the forming-rollsare adjustably mounted, gear mechanism mounted on the flexible frame soas to drive the rolls in any of their various positions, an auxiliaryroll mounted opposite the space formed between the two main rolls, andcam-and-link mechanism for vibrating the auxiliary roll so as to assistin discharging the formed loaf of dough, substantially as described.

6. In a machine for forming a cylindrical loat' of dough, thecombination of two main forming-rolls, a flexible frame upon which theforming-rolls are adjustably mounted, gear mechanism mounted on theflexible frame so as to drive the rolls in any of their variouspositions, an auxiliary roll mounted opposite the space' formed betweenthe two main rolls, cam-and-link mechanism for vibrating the auxiliaryroll so as to assist indischarging the formed loaf of dough, and adischarge-chute adapted to receive the formed loaf of dough anddischarge it at the desired point, substantially as described.

7. In a machine for forming a cylindrical loaf of dough, the combinationof several rolls the axes of which are arranged around a central Ypointso as to receive and contact a sheet of dough and roll it into asubstantially cylindrical form, and means for rotating two or more ofthe rolls in the same direction, sub stantially as described.

IOO

In a machine for forming a 'cylindrical rolls to limit the length of theloaf of dough, loaf of dough, the combination of several rollssubstantially as described. the axes of which are arranged around a cen-PETER F; BRYCE.

tral point so as 15o-receive and contact a sheet t 5 of dough and rollit into a substantially cy- ALEXANDER F' BRYCE lindrical form, means forrotating two or more Witnesses: of the rolls in the same direction, andmeans THOMAS F. SHERIDAN, for closing the ends of the space between theTHOMAS B. MCGREGOR.

